KR102023142B1 - Advanced window frame having built-up rail - Google Patents

Abstract

The present invention relates to a window frame having an improved assembly type rail, which is provided to be installed on an indoor wall surface. The window frame comprises: an upper frame body and a lower frame body extruded in a longitudinal direction while having opposition surfaces opposite to an upper end portion and a lower end portion of a door frame; and a rail assembly individually fastened to the opposition surfaces of the upper frame body and the lower frame body, and inducing the door frame to be mounted to be slid.

Description

Window frame with improved prefab rail {ADVANCED WINDOW FRAME HAVING BUILT-UP RAIL}

The present invention relates to a window frame having an improved prefabricated rail, and more particularly, to a window frame having an improved prefabricated rail that can be installed on the interior wall.

Generally, common or detached houses, offices, schools, public institutions, etc., are provided with various windows and fittings for the purpose of mining and ventilating or dividing access and space.

These windows vary greatly in size, from small doors used as windows to large windows installed on the entire wall, and windows or windows combined with a single or two doors from a window frame with a single rail. In other words, there is a sliding window that combines three or four doors by using a window frame having four rails.

In addition, the window door frame for mounting and sliding opening and closing of the door is made through a variety of materials, in the past, the window frame using a wood has been used, but due to the problems due to durability as a metal extruding material or synthetic resin Window frames using the extruded products are mainly used.

As is well known in the window frame has a rail portion for smooth movement of the door, the rail portion of the metal or synthetic window frame is widely used in recent years to be integrally molded at the same time during the extrusion process of the window frame.

That is, as the rail part is protruded together when manufacturing the extrusion mold for forming the window hopper, the rail part of the intermittent or double wire is projected integrally inside the metal window hopper or the synthetic resin window hopper so that the sliding of the door can be smoothly used. This is done.

On the other hand, the background art described above is technical information possessed by the inventors for the derivation of the present invention or acquired in the derivation process of the present invention, and is not necessarily a publicly known technique disclosed to the general public before the present application. .

Korean Utility Model Model No. 20-2012-0001699 Korean Utility Model Registration No. 20-0186912

One side of the present invention has a frame body with an insertion groove formed in the longitudinal direction on the upper surface, the insertion groove of the frame provides a window frame having an improved prefabricated rail configured to be coupled to a separate rail coupling.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Window frame having an improved prefabricated rail according to an embodiment of the present invention, the upper frame and the lower frame body having an opposing surface opposing the upper end and the lower end of the door frame, respectively; And a rail assembly coupled to opposite surfaces of the upper frame and the lower frame, for inducing the door frame to slide.

In one embodiment, the upper frame or the lower frame, the rail insertion groove for inserting and fastening the rail assembly on the opposite surface to the other frame is formed in the longitudinal direction, the rail assembly, the form of the rail insertion groove A rail body formed in a shape corresponding to the rail body; And a barrier that extends in a longitudinal direction along an upper surface of the rail body in a shape corresponding to the shape of the outer circumferential surface of the roller of the door frame, wherein the rail body is configured to allow the roller to be seated on the upper side of the door frame. It is formed higher than the depth of the rail insertion groove, the rail assembly, is formed extending from the lower side of the rail body is inserted into the rail insertion groove and fastened, and further includes a fastening support body for supporting the rail body by elastic force; The fastening support body may include a first wall extending downward from a lower side of the rail body; A second wall spaced apart from the first wall from the other lower side of the rail body and extending in a downward direction; A heat insulation portion provided in a space between the first wall and a support wall respectively formed on the opposing surface of the first wall; Fastening protrusions formed on outer surfaces of the first wall and the second wall, respectively; An elastic support part provided below each of the first wall and the second wall; And a third wall disposed below the first wall and the second wall by the elastic support part, the third wall being seated on the bottom of the rail insertion groove to support the first wall and the second wall. The fastening protrusion may gradually decrease in width toward the first wall or the second wall while going from an upper side to a lower side, and the rail insertion groove may correspond to a shape of the fastening protrusion to fasten the fastening protrusion. Forming fastening grooves on both sides thereof, the elastic support comprising: a support frame supporting the first wall or the second wall; Four support plates for supporting the support frame seated on the upper side; Four pairs of support frames including a first frame and a second frame rotatably connected to a lower portion of each of the four support plates; And a quadrangular pillar shape, wherein the first frame is connected to the upper side to be pivotally and horizontally slidable, and the second frame is connected to one side to be pivotally and vertically slidable. It includes a pillar, the support pillar, the pillar body is formed in the form of a square pillar; Cruciform grooves are formed recessed in the upper portion of the pillar body in a "+" shape; A cross-elastic portion formed in a shape corresponding to the shape of the cross groove and inserted into the cross groove and connected to the upper end of the four branches so that the lower side of the first frame is rotatable; Four vertical grooves formed on each side of the pillar body in a vertical direction; And four vertical elastic parts formed in a shape corresponding to the shape of the vertical grooves and inserted into the vertical grooves, respectively, and connected to the upper outer side so that the lower side of the second frame is rotatable. The cross elastic part includes: A cross case part having an inner space formed in an empty " + "shape; An upper support part formed of a cube and disposed at a center portion of the cross case part; Four upper elastic parts disposed on each side of the upper support part; Four upper elastic support parts disposed at ends of respective branches of the inner space of the cross case part and supported by elastic force of the upper elastic part; And a support bar disposed at each end of each branch of the cross groove, the support bar being installed between one side facing the cross case part and the upper elastic support part, and maintained at a predetermined interval on the upper side of the first frame. The lower side is rotatably connected and includes four upper connection links sliding along the groove of the cross groove in the center direction where each branch of the cross groove meets, wherein the vertical elastic portion, the inner space is empty A vertical case part formed in a shape corresponding to the shape of the vertical groove; A side support part formed of a cube and disposed in a lower space of the vertical case part; A side elastic part disposed above the side support part; A side elastic support part disposed above the inner space of the vertical case part and supported by an elastic force of the side elastic part; And a support bar disposed at an upper end of the vertical groove, the support bar being disposed between the lower surface facing the vertical case portion and the upper surface of the side elastic support portion, and the predetermined distance being maintained at a predetermined interval. The lower side of the connection is installed to be rotatable, and may include a side connection link for sliding along the groove of the vertical groove in the downward direction of the vertical groove.

According to one aspect of the present invention, the rail can be attached and detached, and the weight chain door can be installed more conveniently, but even if the rail is damaged due to an unexpected collision or accident, only the corresponding rail can be replaced very reasonable. It does not have unnecessary gaps, and the gap between the window frame and the door is very close, so it has excellent sound insulation and insulation effect, and there is no resistance element so that the door can be opened and closed more smoothly and smoothly. Of course, by removing the rail portion can easily clean and clean the window frame exposed in a flat state can effectively maintain the clean appearance and hygiene.

In addition, even when the present invention is installed in a high place out of reach of the operator can be added to the device capable of raising and lowering to easily install the present invention regardless of height.

In addition, if the lifting device is broken while the worker is working on the lifting device, it is possible to effectively prevent the hydraulic jack, which is a core component of the lifting device, from being broken.

1 is a view showing a schematic configuration of a window frame having an improved prefabricated rail according to an embodiment of the present invention.
2 is a view showing an embodiment of the rail assembly of FIG.
Figure 3 is an installation example of the rail assembly according to an embodiment of FIG.
4 is a view showing another embodiment of the rail assembly of FIG.
Figure 5 is an installation example of the rail assembly according to another embodiment of FIG.
6 is a view illustrating an embodiment of the elastic support of FIG. 4.
7 and 8 are views showing the support pillar of FIG.
FIG. 9 is a diagram illustrating a cross elastic part of FIG. 7.
FIG. 10 is a view showing the vertical elastic part of FIG. 8.
Figure 11 is a perspective view of a mobile lifting device equipped with a hydraulic jack according to an embodiment of the present invention.
12 is a perspective view showing a specific configuration of the hydraulic jack shown in FIG.
FIG. 13 is a conceptual diagram for describing an internal configuration and an operating principle of the hydraulic jack illustrated in FIGS. 11 and 12.
14 is a view showing the outer cylinder and the connecting portion.
15 is a perspective view showing a movable lifting device equipped with a hydraulic jack according to another embodiment of the present invention.
16 to 18 is a perspective view showing a hydraulic jack according to another embodiment of the present invention.
19 is a perspective view showing a movable lifting device equipped with a hydraulic jack according to another embodiment of the present invention.
20 is a view showing the load distribution of FIG.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

1 is a view showing a schematic configuration of a window frame having an improved prefabricated rail according to an embodiment of the present invention.

Referring to FIG. 1, the window frame 10 having an improved prefabricated rail according to an embodiment of the present invention includes a frame 100 and a rail assembly 200.

The frame 100 includes an upper frame 110 and a lower frame 120 extruded in the longitudinal direction with opposing surfaces opposing the upper and lower ends of the door frame 50, respectively.

Here, the upper frame 110 or the lower frame 120, the rail insertion grooves 111 and 121 for inserting and fastening the rail assembly 200 on the opposite surface to the other frame body may be formed in the longitudinal direction.

The rail assembly 200 is fastened to the rail insertion grooves 111 and 121 formed on the opposing surfaces of the upper frame 110 and the lower frame 120, respectively, and guides the door frame 50 to be seated and slide.

That is, the roller 51 of the door frame 50 is seated on the upper side of the rail assembly 200 inserted into the rail insertion groove 121 of the lower frame body 120, and the user pushes the door frame 50 to open it. As the roller 51 moves along the rail assembly 200 as it is closed, the door frame 50 may move smoothly.

The window frame 10 having the improved prefabricated rail having the configuration as described above can be attached and detached from the rail portion, and the weight chain door can be installed more conveniently, even if the rail portion is damaged by an unexpected collision or accident. It is very reasonable because only the rail can be exchanged, and there is no unnecessary gap and the gap between the window frame and the door is very close, so the sound insulation and insulation effect is excellent, and there is no resistance element so that the door can be opened smoothly and smoothly. By removing only a part of the door, as well as easy removal of the door as well as removing the rail portion can be easily cleaned and cleaned of the window frame exposed in a flat state can effectively maintain the cleanliness of appearance and hygiene.

2 is a view showing an embodiment of the rail assembly of FIG.

Referring to FIG. 2, the rail assembly 200 according to an embodiment includes a rail body 210 and a barrier 220.

The rail body 210 is formed in a shape corresponding to the shape of the rail insertion grooves 111 and 121, and the barrier 220 extends in the longitudinal direction on the upper surface.

At this time, the rail body 210, it is preferable that the roller 51 is formed higher than the depth of the rail insertion groove (111, 121) to be seated on the upper side.

Referring to FIG. 1 or 3, when the depth of the rail insertion grooves 111 and 121 is t, the height of the rail body 210 is approximately t ', such as t + t', of the rail insertion grooves 111 and 121. By being formed to be exposed to the outside, the roller 51 is to be seated and to be able to move the exposed portion.

In addition, the rail body 210 may be formed in the longitudinal direction of the hollow hole 211 of FIG.

The barrier 220 has a shape corresponding to the shape of the outer circumferential surface of the roller 51 of the door frame 50 and extends in the longitudinal direction along the upper side surface of the rail body 210.

That is, although only the semicircle-shaped barrier 220 is shown in FIG. 2, it may be formed in various forms corresponding to the shape of the outer circumferential surface of the roller 51, for example, the outer circumferential surface of the roller 51. If a groove of a polygon such as a triangle is formed in the barrier 220 should also be formed so as to protrude the polygon, such as the same angle.

Here, the rail assembly 200 shown in FIG. 2 or the lower frame body 120 shown in FIG. 3 may be equally applicable to the upper frame body 110 and the rail assembly 200 coupled thereto. In order to avoid duplicate description, the same description will be omitted.

4 is a view showing another embodiment of the rail assembly of FIG.

Referring to FIG. 4, a rail assembly 200a according to another embodiment includes a rail body 210, a barrier 220, and a fastening support body 230. Here, since the rail body 210 and the barrier 220 are the same as the components of FIG. 2, description thereof will be omitted.

The fastening support body 230 extends from the lower side of the rail body 210 and is inserted into and fastened to the rail insertion grooves 111 and 121, and supports the rail body 210 by elastic force.

In one embodiment, the fastening support body 230 may include a first wall 231, a second wall 232, a heat insulation part 233, a fastening protrusion 234, an elastic support part 500, and a third wall 235. ) May be included.

The first wall 231 is spaced apart from the lower side of the rail body 210 to the second wall 232 and extends downward, and has at least one support wall 231a on an opposite surface to the second wall 232. ) Is formed, the lower side is supported by the elastic support (500).

The second wall 232 is spaced apart from the other lower side of the rail body 210 to the first wall 231 and extends in a downward direction, and includes at least one supporting wall on an opposite surface to the first wall 231. 232a is formed, and the lower side is supported by the elastic support part 500.

The heat insulating part 233 is installed in the space between the supporting walls formed on the opposing surfaces of the first wall 231 and the first wall 231, and is made of a heat insulating material such as plastic to move from one wall to another. It prevents heat from being transferred through the support wall 231a or 232a.

The fastening protrusions 234 are formed on the outer surfaces of the first wall 231 and the second wall 232, respectively, and the fastening grooves 122 are formed when the rail assembly 200a is inserted into the rail insertion grooves 111 and 121. It is fastened to prevent the rail assembly 200a from being separated from the rail insertion grooves 111 and 121.

Here, the fastening protrusion 234 is gradually reduced in the width direction toward the first wall 231 or the second wall 232 while going from the upper side to the lower side so as to prevent the separation from the fastening groove 122 easily. That is, it is preferable that the cross section is formed in a shape such as an inverted triangle.

The elastic support part 500 is provided in the lower side of the 1st wall 231 and the 2nd wall 232, respectively, and uses the elastic force, and the 1st wall 231 and the 2nd wall (on the upper side of the 3rd wall 235) 232).

In one embodiment, the elastic support 500 is formed of a material having an elastic force, but may be in the form of a general spring, but may support the first wall 231 or the second wall 232 by the elastic force. If it is an object, it can be applied without regard to its name.

The third wall 235 is installed below the first wall 231 and the second wall 232 spaced apart by the elastic support 500, and is seated on the bottom of the rail insertion grooves 111 and 121. The first wall 231 and the second wall 232 are supported.

In one embodiment, the rail insertion grooves 111 and 121 may form coupling grooves 122 having a shape corresponding to the shape of the locking protrusion 234 on both sides so as to fasten the locking protrusion 234. .

6 is a view illustrating an embodiment of the elastic support of FIG. 4.

Referring to FIG. 6, the elastic support part 500 includes a support frame 540, four support plates 510, four pairs of support frames 520, and a support column 530.

The support frame 540 is supported by the support plate 510 provided below, and supports the 1st wall 231 or the 2nd wall 232 using elastic force.

The supporting plate 510 supports the supporting frame 540 seated on the upper side and is supported by the supporting pillar 530 by the supporting frame 520 connected to the lower side.

That is, the supporting plate 510 seats the supporting frame 540 on the upper side thereof, and in response to the vibration or shock transmitted from the supporting frame 540, the supporting plate 510 is oriented in the horizontal direction (ie, the first frame 521a). Alternatively, vibration or shock may be attenuated by being absorbed by the support frame 520 sliding in the up and down direction (ie, the second frame 521b).

In addition, the present invention is formed by varying the length of the first frame (521a) or the second frame (521b), to overcome the limitations of the existing elastic body that can reduce the impact by simply adjusting the height in the vertical direction The support position by the plate 510 can be freely adjusted not only in the vertical direction but also in the left and right directions.

The support frame 520 is connected to rotatably two frames of the first frame 521a and the second frame 521b at each lower portion of the four support plates 510 to support the plate 510. As described above, the support position of the support frame 540 by the plate 510 is determined by adjusting the length of the first frame 521a or the second frame 521b.

At this time, the upper part of the first frame 521a and the second frame 521b is connected to the lower part of the support plate 510, and the lower part of the first frame 521a is rotated on the upper side of the support column 530. The lower surface of the second frame 521b is connected and installed to enable horizontal sliding movement, and the lower side of the second frame 521b is connected to one side of the support pillar 530 so as to allow rotational and vertical sliding movement.

That is, the first frame 521a or the second frame 521b may be subjected to vibration or shock transmitted from the support plate 510 through a pivoting or sliding movement by elastic force on the upper surface or one side of the support pillar 530. The support pillar 530 is transferred.

The support pillar 530 is formed in the shape of a square pillar, and the lower portion of the first frame 521a is connected to the upper side so as to be rotated and horizontally slidably moved, and the lower portion of the second frame 521b is one side. It is connected to the rotational and vertical sliding movement in the installation, and the elastic force (ie, the cross-elastic portion 533 or vertical elastic portion 535) during the sliding movement of the first frame (521a) or the second frame (521b) Absorbs vibrations or shocks through.

Each of the supporting plate 510 or the supporting frame 520 is driven by the same method as the symmetrical structure of each other, and the contents described with respect to the one supporting plate 510 or the supporting frame 520 as described above are described. The same may be applied to the other support plate 510 or the other support frame 520, the description thereof will be omitted.

In addition, the elastic support 500 having the above-described configuration may be formed in a vertically symmetrical structure, in the case of FIG. 16, each configuration is illustrated as being formed only on the upper portion of the support pillar 530. The configuration associated with four support plates 510 and four pairs of support frames 520 as one would be equally applicable to the bottom of the support pillars 530.

The elastic support 500 having the configuration as described above can not only improve the support stability than the case of supporting the first wall 231 or the second wall 232 by using a simple structure such as a spring, Even when various kinds of vibrations or shocks are transmitted to the window, by effectively absorbing the vibrations or shocks, the seismic performance can be provided to a degree more suitable for the seismic design.

7 and 8 are views showing the support pillar of FIG.

Referring to FIG. 7, the support pillar 530 includes a pillar body 531, a cross groove 532, a cross elastic portion 533, four vertical grooves 534 (see FIG. 8), and four vertical elastic portions. 535 (see FIG. 8).

The pillar body 531 is formed in the shape of a square pillar, a cross groove 532 is formed on the upper portion, the vertical groove 534 is formed on each side.

The cross grooves 532 are recessed and formed in the upper portion of the pillar body 531 in a "+" shape, and a cross elastic portion 533 is inserted into the inner space.

The cross resilient portion 533 is formed in a shape corresponding to the shape of the cross groove 532 and is inserted into the cross groove 532, so that the lower side of the first frame 521a is rotatable on the upper ends of the four branches. It is connected and installed to absorb the vibration or shock transmitted from the first frame 521a by using the elastic force to attenuate the vibration or shock.

The vertical groove 534 is formed in each of the surface of the pillar body 531 in the vertical direction, the vertical elastic portion 535 is inserted into the interior space.

The vertical elastic portion 535 is formed in a shape corresponding to the shape of the vertical groove 534 is inserted into the vertical groove 534, the lower side of the second frame 521b is connected to the upper outer side so as to be rotatable and elastic force By absorbing the vibration or shock transmitted from the second frame 521b to reduce the vibration or shock.

FIG. 9 is a diagram illustrating a cross elastic part of FIG. 7.

Referring to FIG. 9, the cross elastic part 533 includes a cross case part 5313, an upper support part 5332, four upper elastic parts 5333, four upper elastic support parts 5340, and four upper connecting links. A part 5335 is included.

The cross case portion 5313 has an inner space formed in an empty " + " shape and is inserted into the cross groove 532, and includes an upper support portion 5332, four upper elastic portions 5333, and four which are described later in the inner space. Top elastic support parts 5340 are installed.

At this time, the length of each branch of the cross case portion 5311 is formed to be shorter than the length of each branch of the cross groove 532, as shown in Figure 9, the upper portion in the space formed on the outside of the cross case portion (5331) The connecting link portion 5335 may be disposed and may form a space for sliding movement.

The upper support part 5332 is formed of a cube, and is disposed at the center of the cross case part 5311, so that the upper elastic part 5333 is disposed outside each of the four surfaces, and supports the upper elastic part 5333. do.

The upper elastic part 5333 is disposed on each side surface of the upper support part 5332 to support the upper elastic support part 5340 by elastic force, thereby absorbing vibrations or shocks transmitted from the upper elastic support part 5344.

The upper elastic support part 5340 is disposed at each end of each branch of the internal space of the cross case part 5313, is supported by the elastic force of the upper elastic part 5333, and is provided between the upper connection link parts 5335. The upper connecting link portion 5335 is supported by the support bar 5336.

The upper link link portion 5335 is disposed at each end of each branch of the cross groove 532, and is provided between the side of the cross case portion 5313 and the support bar 5336 provided between the upper elastic support portion 5340. It is maintained at a predetermined interval by a), and the lower side of the first frame 521a is connected to the upper side so as to be rotatable, and each branch of the cross groove 532 meets in accordance with the vertical movement of the plate 510. Sliding along the groove of the cross groove 532 in the center direction.

FIG. 10 is a view showing the vertical elastic part of FIG. 8.

Referring to FIG. 10, the vertical elastic portion 535 includes a vertical case portion 5331, a side support portion 5332, a side elastic portion 5431, a side elastic support portion 5344, and a side connection link portion 5345. do.

The vertical case portion 5331 is formed in a shape corresponding to the shape of the vertical groove 534 in which the inner space is empty, and the side support portion 5332, the side elastic portion 5431, and the side elastic support portion 5344 are formed from the lower side of the inner space. ) Are installed in order.

The side support part 5332 is formed of a cube, is disposed in a lower space of the vertical case part 5331, and a side elastic part 5435 is disposed on the upper side to support the side elastic part 5435.

The side elastic part 5343 is disposed above the side support part 5332, and supports the side elastic support part 5344 disposed above by the elastic force, thereby preventing vibration, shock, and the like transmitted from the side elastic support part 5344. Will be absorbed.

The side elastic support part 5344 is disposed above the inner space of the vertical case part 5331, is supported by the elastic force of the side elastic part 5435, and is provided between the side connecting link parts 5345. It supports the side link link portion 5345 by.

The side link link portion 5345 is disposed at an upper end of the vertical groove 534 and is provided between a lower side facing the vertical case portion 5331 and an upper side of the side elastic support portion 5344. It is maintained at a predetermined interval by a), and the lower side of the second frame 521b is connected to the outer side so as to be rotatable, and slides along the groove of the vertical groove 534 in the lower direction of the vertical groove 534. .

Figure 11 is a perspective view of a mobile lifting device equipped with a hydraulic jack according to an embodiment of the present invention.

Specifically, the movable lifting device 20 provided with the hydraulic jack according to an embodiment of the present invention may include a lower frame 310, an upper frame 320, and a hydraulic jack 400.

The lower frame 310 is a member constituting the lower surface of the movable lifting device 20. The lower surface of the lower frame 310 is provided with a moving means 330, the movable lifting device 20 equipped with a hydraulic jack according to the present invention can be guaranteed mobility.

At least one pillar 340 may be disposed on the upper surface of the lower frame 310.

As shown, four pillars 340 may be provided in the corner portion of the lower frame 310, but is not limited to the number of installation.

The pillar 340 may be provided in a form in which the length may vary. For example, the pillar 340 may include an outer pillar having a first diameter and an inner pillar having a diameter smaller than the first diameter and inserted into the outer pillar and sliding along the longitudinal direction of the outer pillar. In this case, the overall length of the pillar 340 is shortened when the inner pillar is slid in the direction in which it is inserted into the outer pillar, and the overall length of the pillar 340 may be increased when the inner pillar is slid in the direction that protrudes from the outer pillar. However, the pillar 340 need not be limited to the above-described configuration, and may be replaced with other conventional configurations as long as the length can be changed by an external force.

The upper frame 320 may be supported from the lower frame 310 by at least one pillar 340 and disposed in parallel with the lower frame 310. On the upper surface of the upper frame 320, an object to be lifted, that is, a worker can be boarded, and when the length of the pillar 340 is increased, the upper frame 320 is lifted from the ground and boarded on the upper frame 320. Elevate the worker.

Hydraulic jack 400 is a device for providing a lifting force to such a pillar (340). Hydraulic jack 400 is installed between the lower frame 310 and the upper frame 320, in order to lift the object seated on the upper frame 320, variable length of the column 340 by using an external force provided by the user. By doing so, the upper frame 320 can be raised and lowered. In this regard, it will be described with reference to FIGS. 12 to 14 together.

12 is a perspective view showing a specific configuration of the hydraulic jack 400 shown in Figure 11, Figure 13 is a conceptual diagram for explaining the internal configuration and operating principle of the hydraulic jack 400 shown in Figures 11 and 12.

Specifically, the hydraulic jack 400 according to an embodiment of the present invention, the main body 410, the outer cylinder 420, the pressure lever 430 and the release valve 440.

The main body 410 is a cylindrical member and has a space in which a working fluid can be stored, and an inner cylinder 411 and a lifting piston 412 may be disposed therein.

The inner cylinder 411 is a cylindrical member formed inside the main body 410, and a working fluid may be stored between the main body 410 and the inner cylinder 411.

The lifting piston 412 is a member installed in the inner cylinder 411 to reciprocate along the longitudinal direction of the inner cylinder 411. That is, when the working fluid is supplied to the inner cylinder 411, the length of the column 340 is increased while the lifting piston 412 is raised by the pressure of the working fluid, thereby contacting the upper portion of the lifting piston 412 The upper frame 320 may rise from the ground.

The outer cylinder 420 is a member for supplying a fluid to the inner cylinder 411, and may be connected to the main body 410 through the fastening bracket 415 so that the outer cylinder 410 is maintained in a sealed state. The pressure piston 421 is formed in the pressure piston 421, and the pressure piston 421 may be raised or lowered by the pressure lever 430.

The pressure lever 430 is a member connected to the pressure piston 421 to transfer the external force provided from the user to the pressure piston 421.

14 is a view illustrating an outer cylinder 420 constituting the hydraulic jack 400 and a connecting portion 422 for coupling the pressure piston 421 and the pressure lever 430 of the outer cylinder 420. The pressure piston 421 formed inside the 420 is physically coupled to the pressure lever 430 through the connection portion 422, and due to this structural feature, the pressure piston 421 is provided by the user provided through the pressure lever 430. Can receive external force.

The pressure lever 430 has a through hole for coupling a member such as a pipe that can be gripped by the user, and thus the user moves the pipe up and down while the pipe is coupled to the pressure lever 430. Accordingly, an external force may be applied to the pressure lever 430. In another embodiment of the present invention, the pressure lever 430 may include the pipe described above or may be provided integrally with the pipe.

Looking at the specific operation principle of the hydraulic jack 400 according to an embodiment of the present invention, the user lifts the pressure lever 430 in a state in which the object to be raised hydraulic jack 400 is seated on the upper frame 320. When raised, the pressure piston 421 is raised to form a negative pressure in the outer cylinder 420. Accordingly, the working fluid stored between the main body 410 and the inner cylinder 411 may flow into the outer cylinder 420 along the suction pipe 451.

Then, when the user presses the pressure lever 430, the pressure piston 421 is lowered to apply pressure to the working fluid sucked into the outer cylinder 420. Thus, the working fluid sucked into the outer cylinder 420 may move to the inner cylinder 411 along the supply pipe 452. At this time, one end of the suction pipe 451 connected to the outer cylinder 420 side is provided with a non-return valve so that the working fluid can be pumped only along the supply pipe (452). The lifting piston 412 is raised by the pressure of the working fluid introduced into the inner cylinder 411. This process is repeated as the user raises and lowers the pressure lever 430, and as a result, as the pressure of the inner cylinder 411 gradually increases, the lifting piston 412 gradually rises to raise the lifting piston ( 412) The object placed on top is lifted.

The release valve 440 is formed at one end of the supply pipe 452 and is a valve-shaped member for releasing the pressure of the inner cylinder 411 according to a user's operation. That is, when the user wants to lower the object to the original position, when the release valve 440 is opened, the high pressure charged working fluid introduced into the inner cylinder 411 receives gravity of the object through the recovery pipe 530. As the pressure of the lifting piston 412 is recovered to the main body 410, the lifting piston 412 is lowered by the gravity of the object while the pressure of the inner cylinder 411 is lowered, and the object may be lowered to its original position. .

As described above, the hydraulic jack 400 according to an embodiment of the present invention may lift or lower a heavy object by using a small force repeatedly applied to the pressure lever 430 from the user.

On the other hand, in another embodiment of the present invention, the user can adjust the magnitude of the pressure provided to the lifting piston 412 according to the type of the object and the type of work to be performed. In this regard, it will be described with reference to FIGS. 15 to 18 together.

15 is a perspective view showing a movable lifting device equipped with a hydraulic jack according to another embodiment of the present invention.

Specifically, the movable lifting device 30 provided with the hydraulic jack according to another embodiment of the present invention includes a lower frame 310, an upper frame 320, and a hydraulic jack 400a.

At this time, the lower frame 310 and the upper frame 320 constituting the movable lifting device 30 provided with a hydraulic jack according to another embodiment of the present invention shown in FIG. 15 is an embodiment of the present invention shown in FIG. Since it is the same as the lower frame 310 and the upper frame 320 constituting the movable lifting device 20 provided with a hydraulic jack according to the example, repeated description will be omitted.

Meanwhile, the hydraulic lifting device 30 equipped with the hydraulic jack according to another embodiment of the present invention constitutes the mobile lifting device 20 provided with the hydraulic jack illustrated in FIG. 11, according to an embodiment of the present invention. 400 may be replaced with a hydraulic jack 400a according to another embodiment of the present invention. In this regard, it will be described with reference to FIGS. 16 to 18 together.

16 to 18 are perspective views showing the hydraulic jack 400a according to another embodiment of the present invention.

FIG. 16 is a perspective view of a hydraulic jack 400a according to another embodiment of the present invention, FIG. 17 is a view comparing an outer cylinder constituting the hydraulic jack 400a of FIG. 16, and FIG. 18 is a hydraulic jack (shown in FIG. 16). It is a conceptual diagram for explaining the internal structure and operation principle of 400a).

Specifically, the hydraulic jack 400a according to another embodiment of the present invention, the main body 410, the outer cylinder (420a, 420b, 420c, 620d, 620e, 620f), the pressure lever 430 and the release valve 440 Include.

At this time, the main body 410, the pressure lever 430 and the release valve 440 constituting the hydraulic jack 400a according to another embodiment of the present invention shown in Figure 13, one embodiment of the present invention shown in Figure 11 Since the main body 410, the pressure lever 430 and the release valve 440 constituting the hydraulic jack 400 according to the example, the repeated description will be omitted.

On the other hand, the hydraulic jack 400a according to another embodiment of the present invention may be characterized in that a plurality of outer cylinder 420 shown in FIG. That is, in the hydraulic jack 400a according to another embodiment of the present invention, a plurality of outer cylinders 420a, 620b, 420c, 420d, 420e, 420f, and 420g may be connected to the pressure lever 430. Referring to FIG. 15, the hydraulic jack 400a according to another embodiment of the present invention includes six outer cylinders 420b and 420c around the first outer cylinder 420a formed along a central axis coaxial with the pressure lever 430. 420d, 420e, 420f, and 420g are expressed as being disposed along the circumference of the first outer cylinder 420a, but the present invention is not limited thereto, and the number of the outer cylinders is not limited.

Each of the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g is provided in a cylindrical shape, and a pressure piston is formed therein, respectively. That is, when a user applies an external force to the hydraulic jack 400a by operating the pressure lever 430, the pressure lever 430 applies the external force provided to each of the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g. Can be distributed by).

In this case, when the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g are all designed to have the same diameter, the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g are delivered to each other. The external force may be uniformly distributed. As another example, when the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g are designed to have different diameters, the external force may be transmitted in proportion to the size of the diameter.

In addition, the sum of the diameters of all the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g constituting the hydraulic jack 400a may be designed to be smaller than the diameter of the inner cylinder 411. Is preferably designed such that the sum of the diameters of the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, 420g is one third or less than the diameter of the inner cylinder 411. When the diameter of the outer cylinder is larger than the diameter of the inner cylinder 411, a force smaller than the magnitude of the external force applied to the outer cylinder can be transmitted to the inner cylinder 411.

A detailed operation principle of the hydraulic jack 400a according to another embodiment of the present invention will be described with reference to FIG. 18.

In FIG. 18, the hydraulic jack 400a according to another embodiment of the present invention is illustrated as having three outer cylinders 420a, 420b, and 420c, but as described above, FIG. 16 illustrates the hydraulic jack 400a of FIG. 14. As a conceptual diagram illustrating the operating principle, two outer cylinders or four or more outer cylinders may also be the same as or similar to the following operating principles.

When the user lifts the pressure lever 430 while the hydraulic jack 400a is in contact with the object under the object to be raised, the pressure pistons 421a, 421b, and 421c of the respective outer cylinders 420a, 420b, and 420c. As the) rises, a negative pressure is formed in the outer cylinder 420. Accordingly, the working fluid stored between the main body 410 and the inner cylinder 411 may flow into the outer cylinders 420a, 420b, and 420c along the suction pipes 451a, 451b, and 451c.

Then, when the user presses the pressure lever 430, the pressure piston (421a, 421b, 421c) is lowered to apply pressure to the working fluid sucked into the outer cylinder (420a, 420b, 420c). Accordingly, the working fluid sucked into the outer cylinders 420a, 420b, and 420c may move to the inner cylinder 411 along the supply pipes 452a, 452b, and 452c. The lifting piston 412 is raised by the pressure of the working fluid introduced into the inner cylinder 411. This process is repeated as the user raises and lowers the pressure lever 430, and as a result, as the pressure of the inner cylinder 411 gradually increases, the lifting piston 412 gradually rises to raise the lifting piston ( 412) The object on the top is lifted.

At this time, the hydraulic jack 400a according to another embodiment of the present invention controls the opening and closing of the shutoff valves 4511a, 4511b, 4511c and the shutoff valves 4511a, 4511b, 4511c installed at one end of the suction pipes 451a, 451b, 451c. It may further include a control means (not shown).

The control means (not shown) may be provided in the form of a control circuit disposed inside the fastening bracket 415 and may be electrically connected to the shutoff valves 4511a, 4511b, and 4511c. In this case, the control means (not shown) may open and close the respective shutoff valves 4511a, 4511b, and 4511c according to the user's operation.

Equation 1 is a formula representing a force (W) applied to the lifting piston 412, the lifting force (W) acting on the lifting piston 412 is pressed against the diameter (D) of the lifting piston 412 It may be determined by the ratio of the sum d of the diameters of the pistons 421a, 421b, and 421c and the external force w applied to the pressure pistons 421a, 421b, and 421c.

That is, when the user transmits the external force w of a predetermined size through the pressure lever 430 to the hydraulic jack 400, the lifting force of the lifting piston 412 is the pressure piston (D) for the diameter D of the lifting piston 412. It may vary depending on the ratio of the diameter d of the 421a, 421b, and 421c. Here, the diameter D of the lifting piston 412 is determined according to the diameter of the inner cylinder 411, and the sum d of the diameters of the pressure pistons 421a, 421b, and 421c is the outer cylinders 420a, 420b, and 420c. As a result, the lifting force W acting on the lifting piston 412 depends on the ratio of the diameter sum of the outer cylinders 420a, 420b, and 420c to the diameter of the inner cylinder 411. Can be variable.

Therefore, the hydraulic jack 400a according to another embodiment of the present invention selectively controls the opening and closing of the shutoff valves 4511a, 4511b, and 4511c by a control means (not shown) to the outer cylinders 420a, 420b, and 420c. It is possible to adjust the amount of the working fluid flows in, and to increase the lifting force of the lifting piston 412 by applying pressure to the working fluid only through the pressure piston (421a, 421b, 421c) isolating valve (4511a, 4511b, 4511c) is open. It can be adjusted.

For example, when only the first shut-off valve 4511a is closed according to a user's control means (not shown), the external force applied to the working fluid is the working fluid when all the shut-off valves 4511a, 4511b, and 4511c are opened. Only two thirds of the external force w applied to it can be transmitted. In other words, the diameters of the outer cylinders 420a, 420b, and 420c may be varied according to the control of the control means (not shown) to have the effect of adjusting the lifting force W of the lifting piston 412. It is possible to adjust the lifting height of the hydraulic jack 400 according to the one-time operation of the pressure lever 430 according to the type of the object to be raised or the type of work to be performed after lifting the object.

In some other embodiments, control means (not shown) may automatically determine the shutoff valves 4511a, 4511b, 4511c to open and close.

For example, the control means (not shown) opens only one shutoff valve 4511a, 4511b, 4511c from the initial operation time of the hydraulic jack 400a until the pressure lever 430 is operated a predetermined number of times, and then pressurizes it. From the time when the lever 430 is operated more than a predetermined number of times, the plurality of shutoff valves 4511a, 4511b, and 4511c may be controlled to be opened. More specifically, the control means (not shown) allows only the first shut-off valve 4511a to be opened until the pressure lever 430 is operated for the first five times, and until the pressure lever 430 is operated for 6 to 10 times. The first shutoff valve 4511a and the second shutoff valve 4511b may be opened, and at least 11 times, all the shutoff valves 4511a, 4511b, and 4511c may be controlled to open. In general, when lifting an object using the hydraulic jack 400a, there are not many kinds of tasks that cannot be performed at a low height. Therefore, if the object is initially raised at a high speed and then rises to an appropriate height, the height of the object is raised. It needs to be finely adjusted. In this case, according to the above-described feature of the present invention, in the state where only one shutoff valve is opened, the object is raised at a high speed within a relatively fast time, and then gradually increases as the number of shutoff valves that are opened increases as time passes. The rate of ascent may decrease. Therefore, even if the user always operates the hydraulic jack 400a with a constant magnitude of force, the user has the effect of varying the rising height of the object.

As another example, the control means (not shown) may automatically determine the shut-off valves 4511a, 4511b, and 4511c to be opened and closed according to the weight of the object disposed above the hydraulic jack 400a.

To this end, the hydraulic jack 400a according to some other embodiments may be further provided with a weight sensing means (not shown).

The weight sensing means (not shown) detects the weight of the object disposed above the hydraulic jack 400a and transmits the weight to the control means (not shown), and the control means (not shown) transfers the size of the detected weight to a predetermined critical section. It is possible to determine whether the shutoff valves 4511a, 4511b, and 4511c are opened or closed based on the result of the comparison with each other.

For example, if it is determined that the control means (not shown) is included in the first critical section in which the weight of the object is relatively light, all of the shutoff valves 4511a, 4511b, and 4511c are opened to open the pressure lever 430 of the user. The lifting height of the hydraulic jack 400 according to the rotation operation can be controlled to be relatively low. On the other hand, if it is determined that the control means (not shown) is included in the second critical section where the object is relatively heavy, one operation of the pressure lever 430 of the user by opening the at least one shutoff valves 4511a, 4511b, and 4511c. The lifting height of the hydraulic jack 400 can be controlled to be relatively low. This is because when the weight of the object is relatively light, the object may leave the hydraulic jack 400a in the ascending process, and when the weight of the object is relatively heavy, the possibility of leaving the hydraulic jack 400a in the ascending process is relatively low as well. This is because a lot of climbing power is required.

As such, the hydraulic jack 400a according to another embodiment of the present invention may allow efficient work using the hydraulic jack 400a by varying the lifting force of the lifting piston 412 according to the type of object or the type of work. .

19 is a perspective view showing a movable lifting device equipped with a hydraulic jack according to another embodiment of the present invention.

Specifically, the movable lifting device 40 provided with the hydraulic jack according to another embodiment of the present invention includes a lower frame 310, an upper frame 320, a hydraulic jack 400, and a drop preventing unit 700.

At this time, the lower frame 310, the upper frame 320 and the hydraulic jack 400 constituting the movable lifting device 40 equipped with a hydraulic jack according to another embodiment of the present invention shown in FIG. Since the same as the lower frame 310 and the upper frame 320 constituting the movable lifting device 20 provided with a hydraulic jack according to an embodiment of the present invention, repeated description will be omitted.

The drop prevention unit 700 is installed at both sides of the hydraulic jack 400 to support the upper frame 320 when the upper frame 320 falls to prevent the hydraulic jack 400 from being damaged.

In one embodiment, the fall prevention part 700 may include an elastic support part 500 and a load distribution part 600.

Here, since the elastic support part 500 is the same in structure except the difference in size with the elastic support part 500 of FIG. 6 or less, the description is abbreviate | omitted.

Referring to FIG. 20, the load dispersing part 600 is installed below the support part 630 supporting the lower side of the elastic support part 500, and has a hollow housing 610 therein and a hollow part 615. Ground ball having a plurality of support small balls 620 placed in the portion 615, and a fixing bolt 646 extending in an upward direction from the center of the ground plane 645 and the ground plane 645 on the top ( 640).

The load spreading part 600 may disperse and partially absorb the load applied from the outside, and transmit a load q smaller than the load P applied from the outside.

The load distribution unit 600 distributes the load applied from the outside of the ball housing 610 inside the ball housing 610 and finally transmits a load smaller than the load applied from the outside of the ball housing 610. . The load applied from the outside of the ball housing 610 is distributed by the plurality of supporting small balls 620 and the ground ball 640 located in the hollow part 615, and a part of the load is distributed to the ball housing 610. The inner wall may be dispersed while pressing, and the remaining load may be transmitted to the outside of the ball housing 610.

The ball housing 610 may be fixed to the surface by using concrete, etc., and a hollow portion 615 in which a plurality of supporting small balls 620 and ground balls 640 are accommodated may be provided therein. .

The ball housing 610 is a material having a certain strength of iron, concrete, wood, plastic, etc. to support the load distributed by the action between the plurality of supporting small balls 620 and the ground ball 640 disposed therein It may be made of.

The ball housing 610 may be formed in various shapes such as a polyhedron or a sphere, and the hollow part 615 may be formed in a spherical shape corresponding to the shape of the ground ball 640.

The plurality of supporting small balls 620 and the ground ball 640 may be accommodated in the hollow part 615 and may be formed in a spherical shape.

The plurality of supporting small balls 620 may be regularly arranged and received to be in contact with each other along the outer circumferential surface of the hollow part 615. The ground ball 640 may be accommodated in the hollow part 615 in a state in which the ground ball 640 is placed on the plurality of small balls for support 620, and may be supported in a point contact state with the plurality of small balls for support 620.

As described above, the plurality of supporting small balls 620 and the ground ball 640 are regularly arranged so that the outer circumferences are in contact with each other, and the external load is caused by the contact points between the plurality of the supporting small balls 620 and the ground balls 640. Dispersion of the external load may occur while pressing the inner wall of the hollow portion 615, ie, the ball housing 610, which is transmitted and finally located at the outermost side. At this time, in the present embodiment, the plurality of small balls for support 620 are regularly arranged, and the ground balls 640 are arranged on the plurality of small balls for support 620, thereby arranging the plurality of small balls for support. The number of contact points between the 620 and the ground ball 640 may be increased, and load transfer may be regulated to increase the load transfer effect between each other. In addition, the ground ball 640 is supported in a point contact state by the plurality of supporting small balls 620, it is possible to minimize the wear.

The plurality of supporting small balls 620 and the ground ball 640 may be made of a material having strength to withstand the load due to the contact point with each other, for example, may be made of iron, concrete, wood, plastic, etc. have.

On the other hand, the ground ball 640 may be provided with a ground plane 645 on the top. A fixing bolt 646 is installed at the center portion of the ground plane 645 to be inserted into the lower side of the support portion 630 so that the support portion 630 is fixed to the ground ball 640.

At this time, the fixing bolt 646 may be formed in a flat pattern without forming a separate protrusion on the outside, but by forming a thread along the outer surface (that is, a shape such as a piece of nail), the lower side of the support portion 630 It would be desirable to tighten more strongly.

As such, the load distribution unit 600 is installed below the elastic support part 500 to support the elastic support part 500, thereby ensuring the support stability of the upper frame 320 by the elastic support part 500 as described above. can do.

A window frame having an improved prefabricated rail according to another embodiment of the present invention may further include a composition for repairing a building structure including an acrylic binder for filling and repairing a crack where a crack is generated in the structure. .

Here, the structure, the frame 100, the rail assembly 200 or the movable lifting device (20, 30, 40) provided with a hydraulic jack may correspond to this, but is not limited thereto, each of which constitutes the present invention All configurations may correspond.

The present inventors found that there is no composition exhibiting a satisfactory effect among the compositions having improved water resistance, water resistance, and crack resistance in a composition for repairing a conventionally existing building structure. The inventors have invented a composition which exhibits a satisfactory effect of water resistance, water resistance and crack resistance.

In the present invention, the acrylic binder may be an acrylic ester copolymer. The acrylic ester copolymer may be an acrylic ester copolymer having a CAS number of 30445-28-4. The present inventors are exploring various compounds that can be added to the composition for repairing building structures, the composition that can achieve both the water resistance and crack resistance that is an object of the present invention to solve when the composition comprises the acrylic ester copolymer Confirmed.

In the present invention, the composition may include 10 to 50 parts by weight of the acrylic binder, preferably 15 to 40 parts by weight, and more preferably 20 to 30 parts by weight.

The composition of the present invention may further include, in particular, EVA binder, butyl cellosolve, rosin, texanol and propylene glycol in order to achieve particularly waterproof and water resistant among the problems to be solved by the present invention. .

In the present invention, the EVA binder is preferably ethylene vinyl acetate, and the CAS number may be a compound having 24937-78-8.

The butyl cellosolve in the present invention may be a compound having CAS number 111-76-2.

In the present invention, the rosin refers to a natural resin obtained by distilling rosin, and any type of rosin may be included as a constitution for solving the problem of the present invention.

In the present invention, the texanol (TEXANOL) may be a compound having CAS number 25265-77-4.

In the present invention, the propylene glycol may be a compound having CAS No. 57-55-6.

The inventors have found that the effect of water resistance is particularly improved when EVA binder, butyl cellosolve, rosin, texanol and propylene glycol are further included as a composition of a building structure repair composition including an acrylic binder. .

Specifically, the composition is 0.01 to 10 parts by weight of EVA binder, 0.01 to 5 parts by weight of butyl cellosolve, 0.01 to 5 parts by weight of rosin, 0.01 to 5 parts by weight of texanol and 0.01 to 3 parts by weight of propylene glycol. It may include.

More specifically, the inventors confirmed that the effect of water resistance is remarkably improved when the composition further includes 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol. It was. That is, EVA binder, butyl cellosolve, rosin, texanol and propylene glycol, and 2-amino-2-methyl-1-propanol and 2-methylamino in the building repair composition containing the acrylic binder. When the 2-methyl-1-propanol is further included, the present invention has been completed through improved water resistance and water resistance.

In the present invention, the composition may include the 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol in a weight ratio of 15 to 20: 1, preferably 16 to 20 It may be included in a weight ratio of 1: 1, and more preferably in a weight ratio of 17 to 20: 1.

The 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-1-propanol may be included in the composition in an amount of 0.1 to 5 parts by weight.

The present inventors confirmed that the composition can improve water resistance, particularly among the problems to be achieved by the present invention.

In addition, the composition for repairing the building structure containing the acrylic binder may further comprise ethylene glycol, butyl cellosolve (butyl cellosolve), calcium carbonate, titanium dioxide and water.

If the above-described composition has an excellent waterproof and water resistance effect, the present composition is characterized in that the crack resistance is improved. The butyl cellosolve is as described above.

In the present invention, the ethylene glycol (ethylene glycol) means a compound having a CAS number 107-21-1.

In the present invention, the calcium carbonate means a compound having a CAS number of 1317-65-3.

In the present invention, the titanium dioxide means a compound having a CAS number of 13463-67-7.

Specifically, the composition is 0.01 to 5 parts by weight of ethylene glycol, 0,01 to 5 parts by weight of butyl cellosolve, 20 to 50 parts by weight of calcium carbonate, 0.01 to 5 parts by weight of titanium dioxide and 0.01 to 10 parts of water It may include parts by weight.

The inventors came to embody the idea in natural extracts while exploring the composition for improving crack resistance. The present inventors confirmed that when the flaxseed slime or flaxseed slime extract is further included in the composition, the effect of crack resistance is significantly improved. That is, when the acrylic repair-containing composition for building repair includes ethylene glycol, butyl cellosolve, calcium carbonate, titanium dioxide and water, and flaxseed slime or flaxseed slime extract, improved crack resistance The present invention was completed through confirmation.

In the present invention, the flax (flax) is a perennial herb of the dicotyledonous rat Rat Asteraceae, the seeds are flat, long oval, yellowish brown.

The flaxseed mucus in the present invention can be prepared through a variety of methods, for example by scraping the mucus from flaxseed using a scraper (scraper) can be prepared flaxseed mucus.

In the present invention, the flaxseed slime extract may be prepared as follows.

1 g of flaxseed was poured into 50 L of purified water, stirred at 25 ° C. for 5 hours, filtered through a 300 mesh filter cloth, and precipitated by addition of the same amount of alcohol, preferably ethanol, to the filtrate, and then Whatman filter paper, for example, Watts. Bay filter paper NO. After filtration using 5 to dry to obtain a white powder form.

Conventionally, various uses are known as the use of flaxseed, but the effect of improving the crack resistance by including them in a composition for repairing building structures as in the present invention has not been known to date, and studies are insignificant.

Specifically, the composition may include 1 to 10 parts by weight of the flaxseed slime or flaxseed slime extract.

In addition, at least one additive selected from a dispersant, an antifoaming agent, an antimicrobial agent, a preservative, and a cryoprotectant within a range that does not impair the basic physical properties of the building structure repair composition.

In addition, the present invention S1) removing the deterioration of the surface of the building structure; And S2) the crack repairing of the structure may be performed by forming a crack repairing film by applying and drying the building structure repairing composition on the upper surface of the building structure from which the deterioration part is removed.

Hereinafter, the configuration of the present invention and its effects through specific examples and comparative examples will be described in more detail. However, this embodiment is intended to illustrate the present invention in more detail, and the scope of the present invention is not limited to these examples.

Material preparation

Information on the main raw materials used in the building structure repair composition for the following Examples and Evaluation Examples is as follows.

1) Acrylic Binder: Acrylic ester copolymer CAS NO 30445-28-4

2) EVA Binder: Ethylene vinyl acetate CAS NO 24937-78-8

3) Butylcellosolve: CAS NO 111-76-2

4) TEXANOL: CAS NO 25265-77-4

5) Propylene glycol: CAS NO 57-55-6

6) ethylene glycol: CAS NO 107-21-1

Calcium carbonate: CAS NO 1317-65-3

8) titanium dioxide: CAS NO 13463-67-7

9) 2-amino-2-methyl-1-propanol: CAS NO 124-68-5

10) 2-methylamino-2-methyl-1-propanol: CAS NO 27646-80-6

11) Flaxseed Mucus

Flaxseed mucus was obtained by scraping mucus from flaxseed using a scraper.

12) Flaxseed Mucus Extract

1 g of flaxseed was poured into 50 L of purified water, stirred at 25 ° C. for 5 hours, filtered through a 300 mesh filter cloth, and precipitated by adding the same amount of ethanol to the filtrate. Filtration using 5 followed by drying yielded about 0.2 g of a white powder.

Example 1

5 parts by weight of EVA binder, 1 part by weight of butyl cellosolve, 0.5 part by weight of rosin, 0.5 part by weight of texanol, 0.1 part by weight of propylene glycol and other thickening aids, with 30 parts by weight of an acrylic binder and stirring at a speed of 600 rpm. After slowly adding a pH adjuster, etc. in order, 50 parts by weight of calcium carbonate was added thereto and stirred at room temperature for 1 hour at a speed of 300 rpm to prepare a composition for repairing building structures.

Example 2

5 parts by weight of EVA binder, 1 part by weight of butyl cellosolve, 0.5 part by weight of rosin, 0.5 part by weight of texanol, 0.1 part by weight of propylene glycol, 1 part by weight with 30 parts by weight of an acrylic binder and stirring at a speed of 600 rpm. 2-amino-2-methyl-1-propanol, 0.06 parts by weight of 2-methylamino-2-methyl-1-propanol and other thickening aids, pH adjusters, etc. were gradually added in order, and then 50 parts by weight of calcium carbonate, a filler, was added. Put and stirred at room temperature for 1 hour at a speed of 300rpm to prepare a composition for building structure repair.

Example 3

Put 30 parts by weight of the acrylic binder into the mixing agitation vessel and stir at a speed of 600 rpm, followed by 1 part by weight of ethylene glycol, 1 part by weight of butyl cellosolve, 0.5 part by weight of titanium dioxide, 5 parts by weight of water and other thickening aids, and pH adjusting agent. After slowly adding as much as 50 parts by weight of a filler calcium carbonate was stirred at room temperature for 1 hour at a speed of 300rpm to prepare a composition for building structure repair.

Example 4

30 parts by weight of an acrylic binder was added to the mixing agitator and 1 part by weight of ethylene glycol, 1 part by weight of butyl cellosolve, 0.5 part by weight of titanium dioxide, 5 parts by weight of water, 5 parts by weight of flaxseed slime and flaxseed slime extract After slowly adding a mixture and other thickening aids, pH regulators and the like in order to add 50 parts by weight of calcium carbonate filler and stirred at room temperature for 1 hour at a speed of 300rpm to prepare a building construction composition.

Evaluation example 1

After the deterioration part of the civil engineering structure was removed, the crack repair film was formed by coating and drying the composition for repairing the building structures of Examples 1 to 4 on the surface. The adhesive strength, crack resistance and slip resistance of the crack repair film thus obtained and the storage stability of the crack repair agent composition were evaluated based on the test method of the KS standard and KSL 1593, and the results are shown in Table 1 below. In addition, in the case of waterproofing, the degree of water absorption inside the crack repair film was evaluated by a five-point scale method. Product X in Table 1 represents a product for repairing the building structure of the building structure of Company B, which is commercially available in Korea, and evaluated it as a comparison target with the compositions of Examples 1 to 4.

TABLE 1

As shown in Table 1, the building structure repair composition of Examples 1 to 4 can be confirmed that the water resistance, water resistance and crack resistance is improved compared to the product X, it is confirmed that there is no problem in storage stability and slip resistance It became. In particular, Examples 1 and 2 in the present invention can be confirmed that the better evaluation in water resistance and water resistance, Examples 3 and 4 can be confirmed that the better evaluation in crack resistance.

The above-described embodiments are for illustrative purposes, and those of ordinary skill in the art to which the above-described embodiments belong may easily change to other specific forms without changing the technical spirit or essential features of the above-described embodiments. I can understand. Therefore, it is to be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope to be protected by the present specification is represented by the following claims rather than the above description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10: window sill with improved prefabricated rail
20, 30, 40: movable lifting device with hydraulic jack
110: upper frame
111: rail insertion groove
120: lower frame
121: rail insertion groove
200: rail assembly
210: rail body
220: obtuse
230: fastening support body
231: first wall
232: second wall
233: insulation
234: fastening protrusion
235: third wall
310: lower frame
320: upper frame
400: hydraulic jack
500: elastic support
600: load distribution
700: drop prevention unit

Claims (2)

An upper frame and a lower frame, each of which has an opposing surface facing the upper and lower portions of the door frame and is extruded in the longitudinal direction; And
It is fastened to the opposite surface of the upper frame and the lower frame, respectively, and includes a rail assembly to guide the sliding door frame is seated,
The upper frame or the lower frame, the rail insertion groove for inserting and fastening the rail assembly on the opposite surface to the other frame is formed in the longitudinal direction,
The rail assembly may include a rail body formed in a shape corresponding to the shape of the rail insertion groove; And a barrier extending in a longitudinal direction along an upper surface of the rail body in a shape corresponding to the shape of the outer circumferential surface of the roller of the door frame.
The rail body is formed higher than the depth of the rail insertion groove so that the roller is seated on the upper side,
The rail assembly further extends from the lower side of the rail body, is inserted into the rail insertion groove and fastened, and further includes a fastening support body supporting the rail body by an elastic force.
The fastening support body may include a first wall extending downward from one lower side of the rail body; A second wall spaced apart from the first wall from the other lower side of the rail body and extending in a downward direction; A heat insulation portion provided in a space between the first wall and a support wall respectively formed on the opposing surface of the first wall; Fastening protrusions formed on outer surfaces of the first wall and the second wall, respectively; An elastic support part provided below each of the first wall and the second wall; And a third wall disposed below the first wall and the second wall by the elastic support part, the third wall being seated on the bottom of the rail insertion groove to support the first wall and the second wall. ,
The fastening protrusion, the width gradually decreases in the direction of the first wall or the second wall while going from the upper side to the lower direction,
The rail insertion groove has fastening grooves having a shape corresponding to the shape of the fastening protrusion on both sides so as to fasten the fastening protrusion,
The elastic support unit, a support frame for supporting the first wall or the second wall; Four support plates for supporting the support frame seated on the upper side; Four pairs of support frames including a first frame and a second frame rotatably connected to a lower portion of each of the four support plates; And a quadrangular pillar shape, wherein the first frame is connected to the upper side to be pivotally and horizontally slidable, and the second frame is connected to one side to be pivotally and vertically slidable. Including pillars,
The support pillar, the pillar body is formed in the shape of a square pillar; Cruciform grooves are formed recessed in the upper portion of the pillar body in a "+"shape; A cross-elastic portion formed in a shape corresponding to the shape of the cross groove and inserted into the cross groove and connected to the upper end of the four branches so that the lower side of the first frame is rotatable; Four vertical grooves formed on each side of the pillar body in a vertical direction; And four vertical elastic parts formed in a shape corresponding to the shape of the vertical grooves and inserted into the vertical grooves, respectively, and connected to the upper outer side so that the lower side of the second frame is rotatable.
The cross resilient portion, a cross case portion formed in the form of a "+" empty internal space; An upper support part formed of a cube and disposed at a center portion of the cross case part; Four upper elastic parts disposed on each side of the upper support part; Four upper elastic support parts disposed at ends of respective branches of the inner space of the cross case part and supported by elastic force of the upper elastic part; And a support bar disposed at each end of each branch of the cross groove, the support bar being installed between one side facing the cross case part and the upper elastic support part, and maintained at a predetermined interval on the upper side of the first frame. It is connected to the lower side is rotatably installed, and includes four upper connecting links for sliding along the groove of the cross groove in the direction of the center of each branch of the cross groove,
The vertical elastic part may include a vertical case part formed in a shape corresponding to the shape of the vertical groove having an inner space; A side support part formed of a cube and disposed in a lower space of the vertical case part; A side elastic part disposed above the side support part; A side elastic support part disposed above the inner space of the vertical case part and supported by an elastic force of the side elastic part; And a support bar disposed at an upper end of the vertical groove, the support bar being disposed between the lower surface facing the vertical case portion and the upper surface of the side elastic support portion, and the predetermined distance being maintained at a predetermined interval. The lower side of the window is installed rotatably connected, comprising a side connecting link portion sliding along the groove of the vertical groove in the lower direction of the vertical groove, window frame having an improved prefabricated rail.
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